Stinger bacharach, Инструкция по эксплуатации

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9
Vapor/Liquid Recovery Operations
Perform the following steps when recovering refrigerant that is either in vapor or liquid form.
Note
: Refer to “R-410A Recovery – Special Notes” on Page 14 when recovering R-410A.
1. Turn off all electrical or mechanical power to the refrigerant device to be evacuated.
2. Make proper hose connections. Connect refrigerant hoses to recovery cylinder,
STINGER, and A/C system as shown on Page 10. When possible, use a manifold-
gauge set to recover refrigerant from both the high- and low-side service ports. This
will speed up the recovery rates.
CAUTION: If the 80% tank full shutoff cord is not used, then use a scale (P/N 2010-
0000) to monitor the refrigerant level in the recovery cylinder in order to prevent overfilling.
CAUTION: When recovering R-410A, you must use a recovery cylinder approved for
use with R-410A. Standard recovery cylinders with 350 psi working pressures are not
approved for use with R-410A.
3. Turn the inlet valve to the “CLOSED” position, the outlet valve to the “OPEN” position,
and the PURGE valve to the “RECOVER” position. Open the vapor valve on the DOT
recovery tank.
4. Use the rear mounted power switch to turn ON the STINGER.
Note : When recovering liquid, in rare instances a “knocking” sound may come from
the compressor. This indicates that too much liquid is entering the compressor. The
inlet valve must be regulated (closed) until this knocking sound stops, otherwise
compressor damage could occur. Pumping liquid when the compressor is knocking will
damage the compressor, reduce the compressor life, and void the compressor’s
warranty . This condition is rare and should not occur under normal recovery
operations.
5. Slowly open the inlet valve until the Stinger’s compressor turns on. Continue to slowly
regulate the inlet valve to the full open position.
WARNING: If the compressor begins to “knock,” regulate the inlet valve toward the
closed position until the knocking stops. Failure to do so could void the compressor’s
warranty.
6. Proceed with the recovery process until the system pressure shows a vacuum. Turn
OFF the STINGER for a minimum of 5 minutes; after which, determine the amount of
refrigerant remaining in the system. Repeat this step until system pressure is below
mandatory EPA levels.
7. Purge the STINGER as follows:
a. Turn OFF the STINGER.
b. Turn the inlet and purge valves to their “PURGE” position (both pointing DOWN),
and the outlet valve to its “OPEN” position (pointing UP).
c. Turn ON the STINGER and monitor the inlet gauge. The purge operation is
complete when the inlet pressure gauge shows a vacuum.